A reciprocal vibration type power generator includes a housing, a coil set seat, a power generation coil set surrounding the coil set seat, and a motion block including an outer magnetic member and a columnar magnet. An inner space is formed between the outer magnetic member and a periphery of the columnar magnet to enable reciprocal relative axial movement between the motion block and the coil set seat when the generator is vibrated. A rectifying and charging circuit is connected to the power generation coil set to rectify power induced in the power generation coil set upon movement of the motion block, and to supply the rectified power to a power storage device. The rectifying and charging circuit is also connected to input/output terminals on the generator housing for outputting power to an external device, and for inputting external charging power to the power storage device.
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1. A reciprocal vibration type power generator, comprising:
a housing (100);
a coil set seat (101);
an annular power generation coil set (104) supported by the coil set seat (101) and including output wires (105) that extend through the coil set seat (101) to a space between the coil set seat and the housing (100);
a motion block (110) including an annular outer magnetic member (108 or 117) and a columnar magnet (107), an inner space (111) being formed between the annular outer magnetic member (108 or 117) and a periphery of the columnar magnet (107), wherein said coil set seat (101) and annular power generation coil set (104) extend into said inner space (111) to enable reciprocal relative axial movement between the motion block (110) and the coil set seat (101) when said generator is vibrated, said relative movement between the motion block (110) and the coil set seat (101) causing said columnar magnet (107) and said annular outer magnetic member (108 or 117) to move reciprocally past the annular power generation coil set (104) and thereby generate electric power;
a rectifying and charging circuit (300) included in said housing (100) and connected to the output wires (105) for rectifying the electric power generated in said annular power generation coil set (104);
an anode input/output terminal (410) installed on the housing (100) and connected to an anode terminal of the rectifying and charging circuit (300);
a cathode input/output terminal (420) installed on the housing (100) and connected to a cathode terminal of the rectifying and charging circuit (300), said anode and cathode input/output terminals (410,420) being for inputting electric power from an external source and for outputting electric power from the rectifying and charging circuit (300) to outside the housing (100);
a power storage device (310) included in said housing (100) for storing rectified electric power received from the rectifying and charging circuit (300) and to output the electric power from the rectifying and charging circuit (300) or input the electric power from the external source through the anode and cathode input/output terminals (410,420) installed on the housing (100).
2. A reciprocal vibration type power generator as claimed in
a first buffer member (112), installed in a cylindrical space (102) of the coil set seat (101), for serving as a buffer when the columnar magnet (107) and the annular outer magnetic member (108 or 117) move axially past the power coil set (104) towards one end of the housing (100); and
a second buffer member (113) installed in a cylindrical space (114) at an opposite end of the housing (100) from said one end of the housing for serving as a buffer when the columnar magnet (107) and the annular outer magnetic member (108 or 117) move axially past the power coil set (104) towards said opposite end of the housing (100).
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a first buffer member (112) installed in a cylindrical space (102) of the coil set seat (101) for serving as a buffer when the respective first (108, 117) and second (208, 217) annular outer magnetic members and the respective first and second columnar magnets (107, 207) move axially past the first and second annular power generation coil sets (104, 204) towards one end of the housing (100); and
a second buffer member (113) installed in a cylindrical space (114) at an opposite end of the housing (100) from said one end of the housing for serving as a buffer when the respective first (108, 117) and second (208, 217) annular outer magnetic members and the respective first and second columnar magnets (107, 207) move axially past the first and second power coil sets (104, 204) towards said opposite end of the housing (100).
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(a) Field of the Invention
The present invention is a novel design for a reciprocal vibration type power generator that includes a housing, a coil set seat, a power generation coil set surrounding the coil set seat, and a motion block including an outer magnetic member and a columnar magnet. An inner space is formed between the outer magnetic member and a periphery of the columnar magnet to enable reciprocal relative axial movement between the motion block and the coil set seat when the generator is vibrated. A rectifying and charging circuit is connected to the power generation coil set to rectify power induced in the power generation coil set upon movement of the motion block, and to supply the rectified power to a power storage device. The rectifying and charging circuit is also connected to input/output terminals on the generator housing for outputting power to an external device, and for inputting external charging power to the power storage device.
(b) Description of the Prior Art
The conventional axial vibration type power generator utilizes a round columnar magnet axially coupled with an annular power generation coil set for performing axial vibrating displacement, so that the power generation coil set is enabled to generate electric power based on Lenz's Law. However, the coupling magnetic lines of the columnar magnet and the annular power generation coil set are transmitted through air, increasing the magnetic resistance and lowering the voltage of the generated electric power, and power storage is not sufficient.
The present invention includes a columnar magnet in a round columnar shape and having different magnetic poles in the axial direction, and an outer magnetic conductive member enclosing the exterior of the columnar magnet. The columnar magnet and outer magnetic conductive member are combined to form a motion block assembly (106) and are coaxially and adjacently disposed to provide a magnetic path for performing synchronous axial displacement. The outer diameter of the columnar magnet is smaller than the inner diameter of the outer magnetic conductive member and formed with an annular gap, allowing an annular power generation coil set to pass therebetween Consequently, when the columnar magnet and the outer magnetic conductive member are subjected to relative reciprocal axial vibrations, the annular power generation coil set is enabled to generate electric power based on Lenz's Law, and the generated electric energy is stored in a power storage device through a rectifying and charging circuit. The generator further includes an anode output/input terminal and a cathode output/input terminal connected to the power storage device for serving as electric energy output/input interfaces.
The conventional axial vibration type power generator utilizes a round columnar magnet axially coupled with an annular power generation coil set for performing axial vibrating displacement, so that the power generation coil set is enabled to generate electric power based on Lenz's Law. However, the coupling magnetic lines of the columnar magnet and the annular power generation coil set are transmitted through air, and thereby the magnetic resistance is relatively large and the voltage of the generated electric power is therefore lowered, and power storage is not sufficient.
The present invention comprises a columnar magnet having a round columnar shape and different magnetic poles in an axial direction, and an outer magnetically conductive member enclosing the exterior of the columnar magnet, the columnar magnet and outer magnetic conductive member being combined to form a motion block assembly (106). The columnar magnet and outer magnetically conductive member are coaxial and disposed adjacent to each other to provide a magnetic path for enabling synchronous axial displacement. The outer diameter of the columnar magnet is smaller than the inner diameter of the outer magnetically conductive member and formed with an annular gap to allow an annular power generation coil set to pass therebetween, so that when the columnar magnet and the outer magnetically conductive member undergo relative reciprocal axial displacement as a result of vibrations, the annular power generation coil set is enabled to generate electric power based on Lenz's Law, and the electric energy is stored in a power storage device through a rectifying and charging circuit, and installed with an anode output/input terminal and a cathode output/input terminal of power storage device for serving as electric energy output/input interfaces.
The present invention is a novel design for an axial vibration type power generator, wherein the outer end of the location where the columnar magnet passes the annular power generation coil set is installed with an outer magnetic conductive member for reducing the magnetic resistance generated while the magnetic poles at two ends of the columnar magnet pass the annular power generation coil set, the columnar magnet and the outer magnetic conductive member being jointly combined to form a motion block assembly (106) capable of synchronous axial displacement so as to pass the annular power generation coil set, and enable the annular power generation coil set to generate electric power based on Lenz's Law. The electric energy is stored in a power storage device through a rectifying and charging circuit, and the generator is further installed with an anode output/input terminal and a cathode output/input terminal connected to the power storage device for serving as electric energy output/input interfaces.
As shown in
A housing (100) is constituted by a material having poor magnetic conduction and poor electrical conduction, formed in a hollow cylindrical shape and having an inner end from which inwardly extends a tubular annular coil set seat (101) with a distal end connecting to the annular power generation coil set (104). An annular space (103) is formed between the tubular annular coil set seat (101) and the inner space of the housing (100), the center of the tubular annular coil set seat (101) is formed with a round space (102), and the annular power generation coil set (104) is connected to input and output wires (105) for outputting the electric power generated by the annular power generation coil set (104) to a rectifying and charging circuit (300), then output to the anode terminal of a power storage device (310) from the output end of the rectifying and charging circuit (300), and then output to an anode output/input terminal (410) and a cathode output/input terminal (420) installed in the housing (100) from the anode terminal of the power storage device (310).
A motion block assembly (106) is constituted by a material having poor magnetic conduction and poor electric conduction, and is provided with a cup-shaped structure that forms a motion block (110) for combining with the outer magnetic conductive member (108). The center of the cup-shaped structure of motion block (110) is provided with a center column (109) for combining with the columnar magnet (107), and the periphery of the central column of motion block (109) and the cup-shaped structure of motion block (110) form an inner annular space (111) for receiving the annular power generation coil set (104) and the tubular annular coil set seat (101), and for allowing the coil set (104) and the coil set seat (101) to perform relative axial displacement. round space (102) of the tubular annular coil set seat (101) is provided for receiving the columnar magnet (107) and the center column of motion block (109) and allowing the columnar magnet (107) and center column of motion block (109) to perform relative axial displacement.
A first buffer member (112) is installed between the round space (102) of the tubular annular coil set seat (101) and the inner wall of the housing (100) for serving as a buffer while the center column (109) and the columnar magnet (107) of the motion block assembly (106) and the outer magnetic conductive member (108) perform axial displacement.
The above-mentioned columnar magnet (107) for performing axial reciprocal movement relative to the outer magnetic conductive member (108) in response to vibrations to pass through the annular power generation coil set (104), enabling the annular power generation coil set (104) to generate power.
A rectifying and charging circuit (300) is constituted by electromechanical and solid electronic components and rectifying devices, and provided for rectifying the electric power generated by the annular power generation coil set (104) and then inputting the electric power to the power storage device (310).
Power storage device (310) is constituted by a rechargeable secondary battery, ultra capacitor, or capacitor, and provided for storing the electric power from the rectifying and charging circuit (300) or electric power input from the anode output/input terminal (410) and the cathode output/input terminal (420).
Anode output/input terminal (410) is constituted by an electrically conductive terminal head, terminal, plug, or socket structure, and installed in the housing (100) and connected to the anode terminal of the rectifying and charging circuit (300) for outputting or inputting electric energy to the exterior.
Cathode output/input terminal (420) is constituted by an electrically conductive terminal head, terminal, plug, or socket structure, and installed in the housing (100) and connected to the cathode terminal of the rectifying and charging circuit (300) for outputting or inputting electric energy to the exterior.
The cylindrical space (114) inside the housing (100) is provided for being receiving the outer periphery of the motion block assembly (106) and allowing the relative axial displacement, and a second buffer member (113) is installed between the motion block assembly (106) and the cylindrical space (114) inside the housing (100) for serving as a buffer when the motion block assembly (106) performs the axial displacement.
The cross-sectional view of
As shown in
A housing (100) is constituted by a material having poor magnetic conduction and poor electric conduction, and formed in a hollow cylindrical shape having an inner end from which a tubular annular coil set seat (101) extends inwardly. A distal end of the tubular annular coil set seat (101) connects to an annular power generation coil set (104), and an annular space (103) is formed between the tubular annular coil set seat (101) and an inner hole of the housing (100). The center of the tubular annular coil set seat (101) is formed with a round space (102), and the annular power generation coil set (104) is installed with an output wire (105) for outputting the electric power generated by the annular power generation coil set (104) to a rectifying and charging circuit (300), and then outputting the rectified power to the anode terminal of a power storage device (310) from the output end of the rectifying and charging circuit (300), and to an anode output/input terminal (410) and a cathode output/input terminal (420) installed in the housing (100) from the anode terminal of the power storage device (310).
A motion block assembly (106) is constituted by a material having poor magnetic conduction and poor electric conduction, and is provided with a cup-shaped structure that forms a motion block (110) for combining with an outer magnet (117). The center of the cup-shaped structure of motion block (110) is provided with a center column (109) for combining with a columnar magnet (107), and the periphery of the central column (109) and the cup-shaped structure of the motion block (110) form an inner annular space (111) for accommodating the annular power generation coil set (104) and the tubular annular coil set seat (101) and allowing the coil set (104) and the coil set seat (101) to perform relative axial displacement. The round space (102) of the tubular annular coil set seat (101) accommodates the columnar magnet (107) and the center column (109) and allows the columnar magnet (107) and the center column (109) to perform relative axial displacement.
A first buffer member (112) is installed between the round space (102) of the tubular annular coil set seat (101) and the inner wall of the housing (100) for serving as a buffer while the center column (109) and the columnar magnet (107) of the motion block (110) and the outer magnetic conductive member (108) perform axial displacement.
The columnar magnet (107) performs axial reciprocal motion in response to vibration to cause the outer magnet (117) to pass through the annular power generation coil set (104), enabling the annular power generation coil set (104) to generate power.
Rectifying and charging circuit (300) is constituted by electromechanical and solid electronic components and rectifying devices, and provided for rectifying the electric power generated by the annular power generation coil set (104) and inputting the electric power to the power storage device (310).
Power storage device (310) is constituted by a rechargeable secondary battery, ultra capacitor, or capacitor, and provided for storing the electric power from the rectifying and charging circuit (300) or electric power input from the anode output/input terminal (410) and the cathode output/input terminal (420).
Anode output/input terminal (410) is constituted by an electrically conductive terminal head, terminal, plug, socket structure, and installed in the housing (100) and connected to the anode terminal of the rectifying and charging circuit (300) for outputting or inputting electric energy to the exterior.
Cathode output/input terminal (420) is constituted by electrically conductive terminal head, terminal, plug, or socket structure, and installed in the housing (100) and connected to the cathode terminal of the rectifying and charging circuit (300) for outputting or inputting electric energy to the exterior.
The cylindrical space (114) inside the housing (100) receives the outer periphery of the motion block assembly (106) to enable the motion block assembly (106) to perform the above-described relative axial displacement, and a second buffer member (113) is installed between the motion block assembly (106) and the cylindrical space (114) inside the housing (100) to serve as a buffer when the motion block assembly (106) performs the axial displacement.
The magnetic pole surfaces of the columnar magnet (107) and the columnar magnet (207) may have the same polarity relative to the annular power generation coil set (104) as shown in
Except for the relative same polarities of the columnar magnet (107) and outer magnet (117), the structure shown in
The embodiment of
A housing (100) is constituted by a material having poor magnetic conduction and poor electric conduction, and is formed in a hollow cylindrical shape having one inner end from which a tubular annular coil set seat (101) inwardly extends with its distal end being combined with an annular power generation coil set (104), with a tubular annular coil set partition seat (201), and extendedly with an annular power generation coil set (204). An annular space (103) is formed between the tubular annular coil set seat (101) and an inner hole of the housing (100), and a center of the tubular annular coil set seat (101) is formed with a round space (102). The annular power generation coil sets (104), (204) are normal-polarity connected in parallel or in series to allow a voltage to accumulate during power generation, and are installed with an output wire (105) for outputting the electric power generated by the annular power generation coil sets (104), (204) to a rectifying and charging circuit (300), the rectified electric power then being output to the anode terminal of a power storage device (310) from the output end of the rectifying and charging circuit (300), and to an anode output/input terminal (410) and a cathode output/input terminal (420) installed in the housing (100) from the anode terminal of the power storage device (310).
A motion block assembly (206) is constituted by a material having poor magnetic conduction and poor electric conduction, and is provided with a cup-shaped structure that forms a motion block (110) for combining with an outer magnetic conductive member (108), and that is further combined with a partition ring (210) of the cup-shaped structure of motion block (110) and extendedly combined with an outer magnetic conductive member (208). The center of the cup-shaped structure of motion block (110) is provided with a center column (109) for combining with a columnar magnet (107), and is further combined with another center column (209) of the motion block (110) and extendedly combined with another columnar magnet (207). The periphery of the central column (109) and the cup-shaped structure of motion block (110) form an inner annular space of a motion block (111) for receiving the annular power generation coil sets (104), (204), the tubular annular coil set partition seat (201), and the tubular annular coil set seat (101) to allow relative axial displacement. The tubular annular coil set seat (101) and the round space (102) of the tubular annular coil set partition seat (201) are arranged to receive the columnar magnets (107), (207) and the center column of motion block (109), (209) to also allow relative axial displacement.
A first buffer member (112) is installed between the round space (102) of the tubular annular coil set seat (101) and the inner wall of the housing (100) for serving as a buffer while the center columns (109), (209) and the columnar magnets (107), (207) of the motion block and the outer magnetic conductive members (108), (208) perform axial displacement.
The interval between the columnar magnet (107) and the columnar magnet (207), which are separated by the center column of motion block (209), and the interval between the annular power generation coil set (104) and the annular power generation coil set (204), which are separated by the tubular annular coil set partition seat (201), enable the annular power generation coil set (104) and the annular power generation coil set (204) to generate a voltage having the same phase when the columnar magnet (107) and the columnar magnet (207), and the outer magnetic conductive member (108) and the outer magnetic conductive member (208), perform the axial reciprocal movement in response to vibrations that cause them to pass the annular power generation coil set (104) and the annular power generation coil set (204).
Rectifying and charging circuit (300) is constituted by electromechanical and solid electronic components and rectifying devices, and provided for rectifying the electric power generated by the annular power generation coil set (104) and inputting the electric power to the power storage device (310).
Power storage device (310) is constituted by a rechargeable secondary battery, ultra capacitor, or capacitor, and provided for storing the electric power from the rectifying and charging circuit (300) or the electric power input from the anode output/input terminal (410) and the cathode output/input terminal (420),
Anode output/input terminal (410) is constituted by an electrically conductive terminal head, terminal, plug, or socket structure, and installed in the housing (100) and connected to the anode terminal of the rectifying and charging circuit (300) for outputting or inputting electric energy to the exterior.
Cathode output/input terminal (420) is constituted by electrically conductive terminal head, terminal, plug, or socket structure, and installed in the housing (100) and connected to the cathode terminal of the rectifying and charging circuit (300) for outputting or inputting electric energy to the exterior.
A cylindrical space (114) inside the housing (100) receives the outer periphery of the motion block assembly (106) to allow relative axial displacement of the motion block assembly (106), and a second buffer member (113) is installed between the motion block assembly (106) and the cylindrical space (114) inside the housing (100) for serving as a buffer when the motion block assembly (106) performs the axial displacement.
The embodiment of
A housing (100) is constituted by a material having poor magnetic conduction and poor electric conduction, and formed in a hollow cylindrical shape having one inner end from which a tubular annular coil set seat (101) extends inwardly with its distal end being combined with an annular power generation coil set (104), and then combined with a tubular annular coil set partition seat (201) and extendedly combined with an annular power generation coil set (204). An annular space (103) is formed between the tubular annular coil set seat (101) and an inner hole of the housing (100), and a center of the tubular annular coil set seat (101) is formed with a round space (102). The annular power generation coil sets (104), (204) are normal-polarity connected in parallel or in series to enable voltage to accumulate during power generation, and are installed with an output wire (105) for outputting electric power generated by the annular power generation coil sets (104), (204) to a rectifying and charging circuit (300), to the anode terminal of a power storage device (310) from the output end of the rectifying and charging circuit (300), and to an anode output/input terminal (410) and a cathode output/input terminal (420) installed in the housing (100) from the anode terminal of the power storage device (310).
A motion block assembly (206) is constituted by a material having poor magnetic conduction and poor electric conduction, and is provided with a cup-shaped structure that forms a motion block (110) for combining with an outer magnet (117), a partition ring (210) of the cup-shaped structure of motion block (110), and an outer magnet (217) The center of the cup-shaped structure of motion block (110) is provided with a center column (109) for combining with the columnar magnet (107), and a center column (209) for combining with a columnar magnet (207). The periphery of the central column of motion block (109) and the cup-shaped structure of motion block (110) form an inner annular space (111) for receiving the annular power generation coil sets (104), (204), a tubular annular coil set partition seat (201), and a tubular annular coil set seat (101) and allowing relative axial displacement. The tubular annular coil set seat (101) and a round space (102) of the tubular annular coil set partition seat (201) receives the columnar magnets (107), (207) and the center columns (109), (209) of motion block (110) and allows the above-mentioned components to perform relative axial displacement.
A first buffer member (112) is installed between the round space (102) of the tubular annular coil set seat (101) and the inner wall of the housing (100) for serving as a buffer while the center columns (109), (209) and the columnar magnets (107), (207) of the motion block and the outer magnets (117), (217) perform axial displacement.
An interval between the columnar magnet (107) and the columnar magnet (207), and the outer magnet (117) and the outer magnet (217), which are separated by the center column of motion block (209), and an interval between the annular power generation coil set (104) and the annular power generation coil set (204), which are separated by the tubular annular coil set partition seat (201), enable the annular power generation coil set (104) and the annular power generation coil set (204) to generate voltage having the same phase when the columnar magnet (107) and the columnar magnet (207), and the outer magnet (117) and the outer magnet (217), perform axial reciprocal vibration-responsive movement to pass through the annular power generation coil set (104) and the annular power generation coil set (204).
Rectifying and charging circuit (300) is constituted by electromechanical and solid electronic components and rectifying devices, and provided for rectifying the electric power generated by the annular power generation coil set (104) and inputting the electric power to the power storage device (310).
Power storage device (310) is constituted by a rechargeable secondary battery, ultra capacitor, or capacitor, and provided for storing the electric power from the rectifying and charging circuit (300) or the electric power input from the anode output/input terminal (410) and the cathode output/input terminal (420).
Anode output/input terminal (410) is constituted by electrically conductive terminal head, terminal, plug, socket structure, and installed in the housing (100) and connected to the anode terminal of the rectifying and charging circuit (300) for outputting or inputting electric energy to the exterior.
Cathode output/input terminal (420) is constituted by electrically conductive terminal head, terminal, plug, or socket structure, and installed in the housing (100) and connected to the cathode terminal of the rectifying and charging circuit (300) for outputting or inputting electric energy to the exterior.
A cylindrical space (114) inside the housing (100) receives the outer periphery of the motion block assembly (106) to allow the relative axial displacement, and a second buffer member (113) is installed between the motion block assembly (106) and the cylindrical space (114) inside the housing (100) to serve as a buffer when the motion block assembly (106) performs the axial displacement.
As shown in
As shown in
The embodiments of
The columnar magnet (107), the columnar magnet (207), the annular power generation coil set (104), the annular power generation coil set (204), the outer magnetic conductive member (108) and the outer magnetic conductive member (208) shown in
The columnar magnet (107), the columnar magnet (207), the annular power generation coil set (104), the annular power generation coil set (204), the outer magnet (117) and the outer magnet (217) shown in
The columnar magnet (107), the columnar magnet (207), the outer magnetic conductive member (108) and the outer magnetic conductive member (208) shown in
The columnar magnet (107), the columnar magnet (207), the outer magnet (117) and the outer magnet (217), shown in
According to the preferred embodiments of the present invention, therefore, a vibration type power generation equipped with an inner columnar and outer annular magnetic motion block further includes a housing (100), an anode output/input terminal (410) and a cathode output/input terminal (420) resulting in a structure having an electrically conductive output interface and shape compatible with those of a conventional battery, but which may be adapted according to actual needs.
Patent | Priority | Assignee | Title |
10811949, | Jun 20 2016 | Kabushiki Kaisha Toshiba | Vibration power generator with elastic members fixed to a housing and coils poistioned between magnets |
11418099, | Aug 28 2018 | MINEBEA MITSUMI INC. | Vibration actuator and electronic equipment |
11444524, | Aug 28 2018 | MINEBEA MITSUMI INC. | Vibration actuator and electronic equipment |
11515775, | Aug 28 2019 | MINEBEA MITSUMI INC. | Vibration actuator and electronic equipment |
11563365, | Apr 06 2018 | Foster Electric Company, Limited | Oscillatory actuator with two springs having elastic member bridging between adjacent arms |
11626787, | Mar 27 2018 | Hitachi Rail Limited | Electromechanical generator with biasing device between mast and magnetic core, the biasing device having folded sheet spring structure |
11632030, | Mar 27 2018 | Hitachi Rail Limited | Electromechanical generator for converting mechanical vibrational energy with magnets and end cores into electrical energy |
11658555, | Apr 28 2020 | NIDEC Sankyo Corporation | Actuator |
11714490, | Oct 22 2019 | CK MATERIALS LAB CO , LTD | Radial magnet actuator with moving mass having a magnet moving vertically and a coil |
11831214, | Apr 06 2018 | Foster Electric Company, Limited | Oscillatory actuator with leaf springs having elastic member bridging spring arms |
11843298, | Apr 28 2020 | NIDEC Sankyo Corporation | Actuator with connection body having viscoelasticity and an air passage through the partition part |
11848586, | Aug 28 2018 | MINEBEA MITSUMI INC | Vibration actuator with plate springs sandwiched between a coil holding part and cases |
11943599, | Apr 11 2019 | Continental Engineering Services GmbH | Vibration actuator for rigid structures for high-performance bass playback in automobiles |
11973389, | Nov 02 2020 | Continental Engineering Services GmbH | Actuator for exciting vibration having at least one electrically conductive ring |
Patent | Priority | Assignee | Title |
6220719, | Feb 11 1998 | Applied Innovative Technologies, Inc. | Renewable energy flashlight |
6729744, | Mar 29 2002 | CRICKET HOLDINGS FAR EAST LIMITED | Faraday flashlight |
6768230, | Feb 19 2002 | TELEDYNE SCIENTIFIC & IMAGING, LLC | Multiple magnet transducer |
6809427, | Feb 19 2002 | TELEDYNE SCIENTIFIC & IMAGING, LLC | Electrical generator with ferrofluid bearings |
7148583, | Sep 05 2005 | Electrical power generators | |
7332826, | May 19 2005 | Trixcel, LLP | Automated motion provider for self powered cell phones |
7688036, | Jun 26 2006 | Battelle Energy Alliance, LLC | System and method for storing energy |
8519573, | Feb 16 2010 | SANYO SEIMITSU CO , LTD | Reciprocating vibration generator |
20040004405, | |||
20050225181, | |||
20080001484, | |||
20080054731, | |||
20080296984, | |||
20090108590, | |||
20130193693, | |||
20130313838, |
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